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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
 9 Months Ended
Jun. 30, 2014
Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net income $ 2,289,842 $ 1,732,186
Adjustments to reconcile net income to net cash (used in) operating activities:    
Depreciation and amortization 413,613 365,919
Share-based compensation expense:    
Stock options 510,493 528,571
Nonvested stock awards 150,055 150,019
Tax adjustment from share-based compensation (160,192) (16,521)
Loss on disposal of property and equipment 78 627
Excess and obsolete inventory cost 41,218 48,450
Deferred income taxes 612,907 (311,453)
(Increase) decrease in:    
Accounts receivable (64,744) (1,118,440)
Unbilled receivables (4,801,141) (3,592,659)
Inventories (1,536,592) (285,781)
Prepaid expenses and other current assets (76,820) 63,584
Other non-current assets 105,886  
Increase (decrease) in:    
Accounts payable 917,832 877,887
Accrued expenses (62,530) 690,780
Income taxes payable (190,971) 308,660
Deferred revenue 231,187 (1,027,476)
Net cash used in operating activities (1,619,879) (1,585,647)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property and equipment (624,284) (555,694)
Proceeds from the sale of property and equipment 599 4,500
Net cash used in investing activities (623,685) (551,194)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Purchase of treasury stock   (696)
Dividend paid   (25,007,519)
Proceeds from exercise of stock options 250,685 775,405
Net cash provided by (used in) financing activities 250,685 (24,232,810)
Net decrease in cash and cash equivalents (1,992,879) (26,369,651)
Cash and cash equivalents, beginning of period 16,386,207 42,977,501
Cash and cash equivalents, end of period 14,393,328 16,607,850
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION    
Cash paid for income taxes $ 650,000 $ 230,000