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Quarterly Results (unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2016
Quarterly Results (unaudited) [Abstract] |
Quarterly Financial Information |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿2016 |  |  |  |  |  |  |  |  |  |  |  |
﻿Revenue |  | $ | 72,345 |  | $ | 71,144 |  | $ | 68,578 |  | $ | 62,467
﻿Gross profit |  |  | 53,194 |  |  | 53,225 |  |  | 52,163 |  |  | 47,082
﻿Income from continuing operations before income taxes |  |  | 6,359 |  |  | 5,092 |  |  | 9,011 |  |  | 6,660
﻿Income from continuing operations |  |  | 4,260 |  |  | 3,397 |  |  | 6,065 |  |  | 4,113
﻿Net Income |  |  | 4,260 |  |  | 3,397 |  |  | 6,065 |  |  | 4,113
﻿Earnings per share from continuing operations- diluted |  |  | 0.36 |  |  | 0.29 |  |  | 0.51 |  |  | 0.34
﻿Earnings (loss) per share- diluted |  |  | 0.36 |  |  | 0.29 |  |  | 0.51 |  |  | 0.34
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿2015 |  |  |  |  |  |  |  |  |  |  |  |
﻿Revenue |  | $ | 73,364 |  | $ | 72,161 |  | $ | 65,936 |  | $ | 61,312
﻿Gross profit |  |  | 53,770 |  |  | 53,167 |  |  | 49,160 |  |  | 45,218
﻿Income from continuing operations before income taxes |  |  | 6,792 |  |  | 8,828 |  |  | 8,109 |  |  | 5,942
﻿Income from continuing operations |  |  | 4,416 |  |  | 5,847 |  |  | 5,402 |  |  | 3,902
﻿Net Income |  |  | 4,444 |  |  | 6,248 |  |  | 5,506 |  |  | 3,860
﻿Earnings per share from continuing operations- diluted |  |  | 0.36 |  |  | 0.48 |  |  | 0.45 |  |  | 0.33
﻿Earnings (loss) per share- diluted |  |  | 0.36 |  |  | 0.51 |  |  | 0.46 |  |  | 0.33
﻿

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1280-108306 + Details
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