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Consolidated Statements of Changes in Stockholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Noncontrolling Interest [Member]
Total
Balance at Sep. 30, 2013 $ 95 $ 61,506 $ 50 $ 32,130 $ 3,334 $ 97,115
Balance, shares at Sep. 30, 2013 9,504,000          
Purchase of treasury shares $ (1,150) (1,150)
Purchase of treasury shares, shares       (101,000)    
Cancelled treasury shares $ (1) (1,149) $ 1,150
Cancelled treasury shares, shares (101,000)       101,000    
Stock-based compensation 282 282
Stock options exercised $ 4 3,122 3,126
Stock options exercised, shares 370,000            
Common stock issued for debt and interest $ 3 2,966 2,969
Common stock issued for debt and interest, shares 294,000            
Noncontrolling interests at acquisition of business 135 135
Payments to noncontrolling interests (216) (216)
Change in marketable securities 41 41
Net income (loss) 11,240 (243) 10,997
Balance at Sep. 30, 2014 $ 101 66,727 91 43,370 3,010 113,299
Balance, shares at Sep. 30, 2014 10,067,000          
Purchase of treasury shares $ (2,296) (2,296)
Purchase of treasury shares, shares       (225,000)    
Cancelled treasury shares $ (2) (2,294) $ 2,296
Cancelled treasury shares, shares (225,000)       225,000    
Stock-based compensation 480 480
Stock options exercised 87 87
Stock options exercised, shares 10,000            
Common stock issued for debt and interest $ 2 2,356         2,358
Common stock issued for debt and interest, shares 233,000            
Noncontrolling interests at acquisition of business 3,392 3,392
Payments to noncontrolling interests (216) (216)
Change in marketable securities 18 18
Common stock issued for acquisition $ 2 2,373 2,375
Common stock issued for acquisition, shares 200,000            
Net income (loss) 9,312 (323) 8,989
Balance at Sep. 30, 2015 $ 103 69,729 109 52,682 5,863 128,486
Balance, shares at Sep. 30, 2015 10,285,000          
Purchase of treasury shares $ (7,311) (7,311)
Purchase of treasury shares, shares       (747,000)    
Cancelled treasury shares $ (8) (7,303) $ 7,311
Cancelled treasury shares, shares (747,000)       747,000    
Warrants exercised, value 500 500
Warrants exercised, shares 49,000            
Stock-based compensation 360 $ 360
Stock options exercised, shares             10,000
Common stock issued for debt and interest $ 1 1,267 $ 1,268
Common stock issued for debt and interest, shares 125,000            
Payments to noncontrolling interests (217) (217)
Change in marketable securities (109) (109)
Restricted stock vesting $ 1 (1)
Restricted stock vesting, shares 96,000            
Payment of dividends (862) (862)
Sale of controlling interest in subsidiary (2,313) (2,313)
Net income (loss) 11,089 (749) 10,340
Balance at Sep. 30, 2016 $ 97 $ 64,552 $ 62,909 $ 2,584 $ 130,142
Balance, shares at Sep. 30, 2016 9,808,000