CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income	$ 7,514	$ 5,251
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,389	1,313
Gain on sale of property and equipment	(13)
Non-cash interest expense included in net income	275	34
Share based compensation expense	750	373
Bad debt expense (recoveries)	82	(26)
Inventory reserve expense	308	67
Changes in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable	2,984	5,495
Costs and estimated earnings in excess of billings on uncompleted contracts	(4,105)	(3,544)
Inventories	794	221
Prepaid expense and other current assets	(1,560)	(1,444)
Deferred charges and other assets	80	310
Accrued litigation settlement	(2,536)
Accounts payable and accrued expenses	(5,263)	20
Billings in excess of costs and estimated earnings on uncompleted contracts	(2,167)	(234)
Income taxes payable	(794)	(1,703)
Other liabilities	33	1,982
Net cash provided by operating activities	1,771	8,115
Cash flows from investing activities:
Acquisitions of property and equipment	(711)	(236)
Proceeds from sale of property and equipment	7,124
Net cash paid for acquisition	0	(24,379)
Net cash provided by (used in) by investing activities	6,413	(24,615)
Cash flows from financing activities:
Net (repayments) on revolving credit lines	(4,675)	(102)
Repayments of debt	(5,427)
Proceeds from employee stock purchase plan and exercise of stock options	844	441
Repurchases of common stock	(973)
Dividends paid to common shareholders	(2,826)	(1,767)
Net cash used in financing activities	(13,057)	(1,428)
Net decrease in cash and cash equivalents	(4,873)	(17,928)
Cash and cash equivalents at beginning of period	22,661	22,994
Cash and cash equivalents at end of period	17,788	5,066
Supplemental Schedule of Non-Cash Activities:
Common stock issued in business acquisition	0	7,423
Cash paid during the period for:
Interest	1,505	310
Income taxes	$ 5,903	$ 3,411