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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Cash flows from operating activities:    
Net income $ 3,021 $ 2,208
Adjustment to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 2,770 414
Gain on sale of property and equipment (15)  
Amortization of Financing Costs 137 5
Share based compensation expense 375 158
Bad debt expense (recoveries) 57 (37)
Inventory reserve expense 182 69
Changes in operating assets and liabilities, net of effect of acquisitions:    
Accounts receivable 861 6,987
Costs and estimated earnings in excess of billings on uncompleted contracts 737 (2,203)
Inventories 215 (137)
Prepaid expense and other current assets (31) (588)
Deferred charges and other assets (160) 42
Accrued litigation settlement (2,536)  
Accounts payable and accrued expenses (4,209) (878)
Billings in excess of costs and estimated earnings on uncompleted contracts (1,206) 62
Income taxes payable 658 302
Other liabilities 19 1,725
Net cash provided by operating activities 875 8,129
Cash flows from investing activities:    
Acquisitions of property and equipment (415) (53)
Proceeds from sale of property and equipment 4,814  
Net cash paid for acquisition   (24,379)
Net cash provided by (used in) by investing activities 4,399 (24,432)
Cash flows from financing activities:    
Net borrowings on credit line   1,030
Repayments of debt (7,012)  
Proceeds from employee stock purchase plan and exercise of stock options 561 91
Repurchases of common stock (973)  
Dividends paid to common shareholders (1,284) (886)
Net cash (used in) provided by financing activities (8,708) 235
Net decrease in cash and cash equivalents (3,434) (16,068)
Cash and cash equivalents at beginning of period 22,661 22,994
Cash and cash equivalents at end of period 19,227 6,926
Supplemental Schedule of Non-Cash Activities:    
Common stock issued in business acquisition   7,423
Cash paid during the period for:    
Interest 759 318
Income taxes $ 553 $ 1,282