XML 82 R51.htm IDEA: XBRL DOCUMENT v2.4.1.9
Receivables and Net Sales (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Receivables and Net Sales    
Accounts receivable-trade $ 16,972,000us-gaap_AccountsReceivableGrossCurrent $ 17,544,000us-gaap_AccountsReceivableGrossCurrent
Less allowance for doubtful receivables (502,000)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent (512,000)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Receivables, net 16,470,000us-gaap_ReceivablesNetCurrent 17,032,000us-gaap_ReceivablesNetCurrent
Provision for doubtful accounts $ 171,000us-gaap_ProvisionForDoubtfulAccounts $ 32,000us-gaap_ProvisionForDoubtfulAccounts