XML 16 R6.htm IDEA: XBRL DOCUMENT v3.10.0.1
Condensed Consolidated Statements of Cash Flows - USD ($)
 3 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities:    
Net income $ 313,000 $ 2,346,000
Adjustments to reconcile net income to cash provided by (used in) operating activities:    
Purchases of marketable securities (68,444,000) (53,513,000)
Proceeds from sale and maturity of marketable securities 65,998,000 53,177,000
Change in fair value of marketable securities 2,059,000 (118,000)
Deferred income taxes (485,000) (726,000)
Depreciation and amortization 386,000 300,000
Provision for doubtful accounts 25,000  
Stock-based compensation 17,000 18,000
Changes in assets and liabilities:    
Accounts receivable (532,000) (133,000)
Costs and estimated earnings in excess of billings (1,419,000) 1,041,000
Inventories (2,015,000) (238,000)
Prepaid expenses & other current assets 322,000 410,000
Accounts payable 1,755,000 1,995,000
Customer deposits (1,166,000) (1,315,000)
Accrued expenses 104,000 373,000
Total adjustments (3,395,000) 1,271,000
Cash flows provided by (used in) operating activities (3,082,000) 3,617,000
Cash flows from investing activities:    
Capital expenditures (661,000) (1,954,000)
Cash flows used in investing activities (661,000) (1,954,000)
Cash flows from financing activities:    
Proceeds from stock option exercises   267,000
Cash flows provided by financing activities   267,000
Net increase (decrease) in cash and cash equivalents (3,743,000) 1,930,000
Cash and cash equivalents at:    
Beginning of period 8,012,000 22,933,000
End of period $ 4,269,000 $ 24,863,000