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v2.4.1.9

Capitalization (Schedule of Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Basic: |  |  |  |  |  |  |  |  |  |  |
Net Income | $ 3,790 us-gaap_NetIncomeLoss | $ 6,758 us-gaap_NetIncomeLoss | $ 4,728 us-gaap_NetIncomeLoss | $ 3,169 us-gaap_NetIncomeLoss | $ 3,168 us-gaap_NetIncomeLoss | $ 5,807 us-gaap_NetIncomeLoss | $ 4,481 us-gaap_NetIncomeLoss | $ 3,177 us-gaap_NetIncomeLoss | $ 18,445 us-gaap_NetIncomeLoss | $ 16,633 us-gaap_NetIncomeLoss | $ 14,396 us-gaap_NetIncomeLoss
Preferred Dividend |  |  |  |  |  |  |  |  | (151)us-gaap_PreferredStockDividendsIncomeStatementImpact | (190)us-gaap_PreferredStockDividendsIncomeStatementImpact | (206)us-gaap_PreferredStockDividendsIncomeStatementImpact
Earnings Applicable to Common Stock |  |  |  |  |  |  |  |  | 18,294 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 16,443 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 14,190 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Weighted-average number of basic shares outstanding, shares |  |  |  |  |  |  |  |  | 16,052 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 15,868 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 15,733 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Basic EPS | $ 0.23 us-gaap_EarningsPerShareBasic | $ 0.42 us-gaap_EarningsPerShareBasic | $ 0.29 us-gaap_EarningsPerShareBasic | $ 0.20 us-gaap_EarningsPerShareBasic | $ 0.20 us-gaap_EarningsPerShareBasic | $ 0.36 us-gaap_EarningsPerShareBasic | $ 0.28 us-gaap_EarningsPerShareBasic | $ 0.20 us-gaap_EarningsPerShareBasic | $ 1.14 us-gaap_EarningsPerShareBasic | $ 1.04 us-gaap_EarningsPerShareBasic | $ 0.90 us-gaap_EarningsPerShareBasic
Diluted: |  |  |  |  |  |  |  |  |  |  |
$7.00 Series Preferred Dividend |  |  |  |  |  |  |  |  | 74 msex_ConvertibleDollar7PreferredSeriesStockDividends | 97 msex_ConvertibleDollar7PreferredSeriesStockDividends | 97 msex_ConvertibleDollar7PreferredSeriesStockDividends
$8.00 Series Preferred Dividend |  |  |  |  |  |  |  |  | 24 msex_ConvertibleDollar8PreferredSeriesStockDividends | 40 msex_ConvertibleDollar8PreferredSeriesStockDividends | 56 msex_ConvertibleDollar8PreferredSeriesStockDividends
Adjusted Earnings Applicable to Common Stock |  |  |  |  |  |  |  |  | $ 18,392 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 16,580 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 14,343 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
Incremental common shares attributable to $7.00 series preferred shares, shares |  |  |  |  |  |  |  |  | 133 msex_IncrementalCommonSharesAttributableToConversionOfDollar7PreferredSeriesStock | 166 msex_IncrementalCommonSharesAttributableToConversionOfDollar7PreferredSeriesStock | 166 msex_IncrementalCommonSharesAttributableToConversionOfDollar7PreferredSeriesStock
Incremental common shares attributable to $8.00 series preferred shares, shares |  |  |  |  |  |  |  |  | 41 msex_IncrementalCommonSharesAttributableToConversionOfDollar8PreferredSeriesStock | 76 msex_IncrementalCommonSharesAttributableToConversionOfDollar8PreferredSeriesStock | 96 msex_IncrementalCommonSharesAttributableToConversionOfDollar8PreferredSeriesStock
Weighted-average diluted shares outstanding, shares |  |  |  |  |  |  |  |  | 16,226 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 16,110 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 15,995 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Diluted EPS | $ 0.22 us-gaap_EarningsPerShareDiluted | $ 0.42 us-gaap_EarningsPerShareDiluted | $ 0.29 us-gaap_EarningsPerShareDiluted | $ 0.20 us-gaap_EarningsPerShareDiluted | $ 0.19 us-gaap_EarningsPerShareDiluted | $ 0.36 us-gaap_EarningsPerShareDiluted | $ 0.28 us-gaap_EarningsPerShareDiluted | $ 0.20 us-gaap_EarningsPerShareDiluted | $ 1.13 us-gaap_EarningsPerShareDiluted | $ 1.03 us-gaap_EarningsPerShareDiluted | $ 0.90 us-gaap_EarningsPerShareDiluted

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