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Consolidated Statements of Stockholders' Equity (USD $)
Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Total
Beginning Balance, Amount at Dec. 31, 2012    $ 6,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 37,913,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (18,931,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ 18,988,000us-gaap_StockholdersEquity
Beginning Balance, Shares at Dec. 31, 2012    5,711,093us-gaap_SharesIssued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
     
Issuance of Shares For Private Placement, Amount      997,000AIRI_IssuanceOfSharesForPrivatePlacementAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   997,000AIRI_IssuanceOfSharesForPrivatePlacementAmount
Issuance of Shares For Private Placement, Shares   133,000AIRI_IssuanceOfSharesForPrivatePlacementShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
     
Dividends Paid      (1,432,000)us-gaap_DividendsCommonStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   (1,432,000)us-gaap_DividendsCommonStock
Dividends Payable      (717,000)AIRI_DividendsPayable
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   (717,000)AIRI_DividendsPayable
Stock compensation expense      38,000us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   38,000us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation
Net income         3,739,000us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
3,739,000us-gaap_NetIncomeLoss
Ending Balance, Amount at Dec. 31, 2013    6,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
36,799,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(15,192,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
21,613,000us-gaap_StockholdersEquity
Ending Balance, Shares at Dec. 31, 2013    5,844,093us-gaap_SharesIssued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
     
Issuance of Shares For Public Offering, Amount    1,000us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
9,561,000us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   9,562,000us-gaap_StockIssuedDuringPeriodValueNewIssues
Issuance of Shares For Public Offering ,Shares    1,170,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
     
Issuance of Shares For Acquisition, Amount      485,000AIRI_IssuanceOfSharesForAcquisitionAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   485,000AIRI_IssuanceOfSharesForAcquisitionAmount
Issuance of Shares For Acquisition, Shares   50,000AIRI_IssuanceOfSharesForAcquisitionShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
     
Exercise of Options/Warrants, Amount               
Exercise of Options/Warrants ,Shares    44,584us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
     
Dividends Paid      (3,031,000)us-gaap_DividendsCommonStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   (3,031,000)us-gaap_DividendsCommonStock
Dividends Payable      (1,066,000)AIRI_DividendsPayable
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   (1,066,000)AIRI_DividendsPayable
Stock compensation expense      42,000us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
   42,000us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation
Net income         667,000us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
667,000us-gaap_NetIncomeLoss
Ending Balance, Amount at Dec. 31, 2014   $ 7,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 42,790,000us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (14,525,000)us-gaap_StockholdersEquity
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
$ 28,272,000us-gaap_StockholdersEquity
Ending Balance, Shares at Dec. 31, 2014   7,108,677us-gaap_SharesIssued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember