TGC Industries (Nasdaq: TGE) reported earnings on April 29. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended March 31 (Q1), TGC Industries whiffed on revenues and missed estimates on earnings per share.

Compared to the prior-year quarter, revenue shrank. Non-GAAP earnings per share contracted significantly. GAAP earnings per share dropped significantly.

Margins dropped across the board.

Revenue details
 TGC Industries logged revenue of $63.2 million. The two analysts polled by S&P Capital IQ expected to see net sales of $70.4 million on the same basis. GAAP reported sales were 5.7% lower than the prior-year quarter's $67.0 million.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions. Non-GAAP figures may vary to maintain comparability with estimates.

EPS details
 EPS came in at $0.32. The two earnings estimates compiled by S&P Capital IQ predicted $0.40 per share. Non-GAAP EPS of $0.32 for Q1 were 44% lower than the prior-year quarter's $0.57 per share. GAAP EPS of $0.29 for Q1 were 49% lower than the prior-year quarter's $0.57 per share.

Source: S&P Capital IQ. Quarterly periods. Non-GAAP figures may vary to maintain comparability with estimates.

Margin details
 For the quarter, gross margin was 31.6%, much worse than the prior-year quarter. Operating margin was 17.3%, much worse than the prior-year quarter. Net margin was 10.0%, 850 basis points worse than the prior-year quarter. (Margins calculated in GAAP terms.)

Looking ahead
 Next quarter's average estimate for revenue is $44.1 million. On the bottom line, the average EPS estimate is $0.08.

Next year's average estimate for revenue is $219.6 million. The average EPS estimate is $0.90.

Investor sentiment
 The stock has a five-star rating (out of five) at Motley Fool CAPS, with 462 members out of 475 rating the stock outperform, and 13 members rating it underperform. Among 91 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 89 give TGC Industries a green thumbs-up, and two give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on TGC Industries is buy, with an average price target of $13.81.

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